/*
 * Copyright 2017 CodiLime
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

#include "util/icons.h"

#include <QBitmap>
#include <QImage>
#include <QPixmap>

namespace veles {
namespace util {

QIcon getColoredIcon(const QString& path, const QColor& color,
                     bool black_on_transparent) {
  QPixmap pixmap(path);
  QPixmap mask;
  if (qGray(color.rgb()) < k_white_threshold) {
    if (black_on_transparent) {
      return QIcon(pixmap);
    }
    mask = pixmap.createMaskFromColor(QColor("white"), Qt::MaskInColor);
  } else {
    QImage im(path);
    im.invertPixels();
    mask = pixmap.createMaskFromColor(QColor("white"), Qt::MaskInColor);
    pixmap = QPixmap::fromImage(im);
    if (black_on_transparent) {
      return QIcon(pixmap);
    }
  }
  pixmap.setMask(mask);
  return QIcon(pixmap);
}

}  // namespace util
}  // namespace veles
